hello.
i m making a simple downloader in java.it simply gets URL ,extracts name,makes new file and writes the new dile by downloading it.it works pretty fine.
But i want to increase speed by making it multithreaded,it should download chunks of file concurrently and then join them after finishing job.
Any Help.........
here is code

If the server is not setup such that it can send different chunks of a file to different requests then this will not work.
That's what Norm is saying.
A standard HTTP link like above does not do that.
It takes a single requests and returns the whole thing to that request.